Used as a reducing agent in photographic developers and in the synthesis of oximes from aldehydes and ketones. Commonly employed in the production of pesticides, pharmaceuticals, and polymers due to its ability to introduce nitrogen-containing functional groups. Plays a role in surface modification of nanoparticles and in analytical chemistry for the determination of carbonyl compounds. Also utilized in the regeneration of ion-exchange resins and as a stabilizer in some chemical formulations.